Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions
Autor(a) principal: | |
---|---|
Data de Publicação: | 1998 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.14/6273 |
Resumo: | With the purpose of testing the recently developed Paired Equivalent Isothermal Exposures (PETE) method, to determine reaction kinetic parameters under nonisothermal conditions, continuous pasteurizations were carried out with a nectar of a tropical fruit [25% of Cupuacu (Theobroma grandiflorum) pulp and 15% of sugar] in order to estimate the ascorbic acid thermal degradation kinetic parameters. The experimental ascorbic acid thermal degradation activation energy (96±13kJ/mol) estimated by the PETE, compared well with the previously determined value (74±5kJ/mol) for the same product under isothermal conditions. The PETE method is a reliable, easy and faster method to estimate first order reactions activation energy. |
id |
RCAP_879dd9d52ace329b17c5cf5555e005f7 |
---|---|
oai_identifier_str |
oai:repositorio.ucp.pt:10400.14/6273 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditionsWith the purpose of testing the recently developed Paired Equivalent Isothermal Exposures (PETE) method, to determine reaction kinetic parameters under nonisothermal conditions, continuous pasteurizations were carried out with a nectar of a tropical fruit [25% of Cupuacu (Theobroma grandiflorum) pulp and 15% of sugar] in order to estimate the ascorbic acid thermal degradation kinetic parameters. The experimental ascorbic acid thermal degradation activation energy (96±13kJ/mol) estimated by the PETE, compared well with the previously determined value (74±5kJ/mol) for the same product under isothermal conditions. The PETE method is a reliable, easy and faster method to estimate first order reactions activation energy.Veritati - Repositório Institucional da Universidade Católica PortuguesaVIEIRA, M.M.C.Silva, C. L. M.Teixeira, A.A.2011-10-15T16:55:06Z19981998-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/6273engVIEIRA, Margarida C.; TEIXEIRA, A. A.; SILVA, Cristina L. M. - Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions. In: CHEMPOR 98: International Chemical Engineering Conference, 7th, Lisboa, Portugal, 24-26 Stembro, 1998 - Proceedings of CHEMPOR'98 7th International Chemical Engineering Conference. [S.l. : s.n. , 1998]. 6 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-12T17:11:01Zoai:repositorio.ucp.pt:10400.14/6273Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:06:07.387838Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
title |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
spellingShingle |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions VIEIRA, M.M.C. |
title_short |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
title_full |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
title_fullStr |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
title_full_unstemmed |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
title_sort |
Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions |
author |
VIEIRA, M.M.C. |
author_facet |
VIEIRA, M.M.C. Silva, C. L. M. Teixeira, A.A. |
author_role |
author |
author2 |
Silva, C. L. M. Teixeira, A.A. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Veritati - Repositório Institucional da Universidade Católica Portuguesa |
dc.contributor.author.fl_str_mv |
VIEIRA, M.M.C. Silva, C. L. M. Teixeira, A.A. |
description |
With the purpose of testing the recently developed Paired Equivalent Isothermal Exposures (PETE) method, to determine reaction kinetic parameters under nonisothermal conditions, continuous pasteurizations were carried out with a nectar of a tropical fruit [25% of Cupuacu (Theobroma grandiflorum) pulp and 15% of sugar] in order to estimate the ascorbic acid thermal degradation kinetic parameters. The experimental ascorbic acid thermal degradation activation energy (96±13kJ/mol) estimated by the PETE, compared well with the previously determined value (74±5kJ/mol) for the same product under isothermal conditions. The PETE method is a reliable, easy and faster method to estimate first order reactions activation energy. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998 1998-01-01T00:00:00Z 2011-10-15T16:55:06Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.14/6273 |
url |
http://hdl.handle.net/10400.14/6273 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
VIEIRA, Margarida C.; TEIXEIRA, A. A.; SILVA, Cristina L. M. - Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions. In: CHEMPOR 98: International Chemical Engineering Conference, 7th, Lisboa, Portugal, 24-26 Stembro, 1998 - Proceedings of CHEMPOR'98 7th International Chemical Engineering Conference. [S.l. : s.n. , 1998]. 6 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799131727241674752 |